Mercedes-Benz S-Class 2019 Operator's Manual page 70

68
Opening and closing
If you open the trunk lid from outside, the trunk
lid is automatically unlocked.
Problems with KEYLESS-GO
Problem
You can no longer lock or unlock the
vehicle using KEYLESS-GO.
Switching the automatic locking feature
on/off
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn‐
ing faster than walking pace.
Possible causes/consequences and
Possible causes are:
The SmartKey battery is weak or discharged.
R
There is interference from a powerful radio signal source.
R
The SmartKey is defective.
R
Check the battery using the battery check lamp and replace if necessary (
#
Use the mechanical key to lock or unlock the vehicle (
#
Have the vehicle and SmartKey checked at a qualified specialist workshop.
#
M M Solutions
page 64).
→
page 64).
→